v3.0.0-beta.6 (#958)

OG-1020: fix some issues in 'calculateDryRunCallGasLimit' AND set ver…

…sion to 3.0.0-beta.5

* OG-1020: some issues in 'calculateDryRunCallGasLimit'

1. Take input gas price instead of re-querying fee history

2. Divide by RelayHub pctRelayFeeDev to avoid hitting false 'paymaster
balance too low' error

3. Take 75% to leave some slack for base fee and calldata

4. Console.log what is going on there to simplify debugging

* v3.0.0-beta.5

GSN v3.0.0-beta.2 (#903)

* Change versions strings in Solidity code

* v3.0.0-beta.2

Co-authored-by: Dror Tirosh <[email protected]>